Casement window



Patented Jan. 28, 1930 '7 UNITED STATES PATENT OFFICE KARL F. JORSS, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR, BY MESNE AS- SIGNMENTS, T0 CRITTALL CASEMENT WINDOW COMPANY, OF DETROIT, MICHIGAN,

' A CORPORATION OF MICHIGAN CASEMENT WINDOW Application filed June 4 This invention relates to improvement in metalhc window sashes and frames, and more specifically to metallic frame and sash structures in which the sash is pivotall y mounted Within or to the frame.

The primary object of the invention is the provision of an installation, such as above referred to, which effectually seals the assembly against the entrance of rain, air and dust, when the sash is in its closed position, yet offers no frictional resistance against movement of the latter to open position. In the attainment of this result, I provide for two parallel lines of metal to metal contact when the sash is closed, whereby to prevent entrance of rain between the sash and frame, in combination with elongated weather strips of felt or the like, so mounted as to exclude air and dust when the sash is in its closed position.

Another object of the invention is the provision of means so housing the felt weather strip as to permit the latter to spread laterally, on each of its sides, as will be hereinafter more particularly referred to.

Other objects of the invention will be made apparent in the following specifications when read in connection with the accompanying tion applied to a sash which is mounted on pivots arranged in vertical alignment, 'it is within the scope of the invention to connect the sash and frame by pivots positioned in lateral alignment, one in each side of the sash and frame, or the pivotal points maybe at the top 01'' bottom of the structure, as will be understood.

Now referring speclflcally to the drawings,

in' which like reference numerals indicate like 1928. Serial No. 282,602.

parts throughout the several views, 1 indicates the rail of the sash member, here shown as provided with hinges 2, in vertical alignment, and adapted to pivotally secure the rail to the frame rail 3.

The sash rail 1 and frame rail3 are built up from extruded metal forms, the sash having the usual glass 4 secured thereto, in the customary manner, the rail being provided with integral, vertically extending. flanges .5, at its top and bottom, and with similar but latorally extending flanges 6. on each side. The frame rail 3 is equipped at the front, and on each side with a vertically-extending integral flange 7, adapted for abutment by the flange 6 on the sash rail, and with a flange 8 on each sidle, and extending inwardly from the side rai s.

It will be understood that the sash rail 1 extends entirely around and defines the shape and size of the sash, and the same is true of the rail 3, with respect to the frame. As clearly illustrated in Figs. 2 and 3, the inner edge of the rail 1 is provided with an integral, offset portion 9, and extending entirely around the rail, said inner edge also carrying a flanged extension 10, terminating short of the flange 8 on the frame. The extension 10 is spacedfrom the oflset 9, to provide an elon-- gated housing for a felt Weatherstrip 11. and,

festly provides space on each side for lateral expansion of portions of the Weatherstrip 11 extending beyond the main housing, when the sash is closed and tightly secured in posi tion by the usual cam or latch members, not

the rain or snow, the contact with the flange pansion of said edge thereover when the sash 8 of the flattened and laterally spread is closed. weather strip 11, eflectually preventing the In testimony whereof I aflix my signature. entrance of air, and of dust when the Weather is dry. KARL F. JORSS.

The provision of space to permit lateral expansion of that portion of the strip 11 which is not confined in the elongated housing is of great importance. Such strips are naturally resilient, and in assembly the greater portion thereof is tightly impacted within the housing formed between the oflset 9 and the extension 10, the outer edge of the strip projecting for contact with the flange 8. It is clear that the amount of dust and air excluded is in direct proportion to the surface contact of the strip with the flange 8. By providing the elongated recess or pocket for the projecting edge of the strip 11, the latter is permitted to expand on each side when compressed by the closing of the sash, and spreads along the face of the flange 8, the natural resilience of the strip causing portions thereof to spring into and till any depressions or irregularities which may be in the contacted surface of the flange 8, and most effectually prevent the passage of air or dust.

Modifications of the structure herein disclosed may be suggested to those skilled in the art, but my invention covers all embodi- 95 ments falling fairly within the scope of the appended claims.

I claim: 1. The combination with a metallic 35 window frame provided with two laterally 10o extending flanges located in separated planes, of a metallic sash pivoted to said frame and provided with members adapted for contact with said flanges when the sash is closed, an 40 ofl'set portion integral with one of said members, and provided with a longitudinally extending groove, an expansible Weatherstrip positioned in said groove and having its edge projecting therefrom, one side of said edge 45 being free for unlimited expansion, and

means carried by said offset portion and positioned to limit lateral expansion of the other side of said edge when compressed by contact with a flange on said frame when the sash is 50 closed.

2. A window structure comprising a metallic frame member and a metallic sash member pivotally connected thereto, means carried by said members adapted, when the sash is closed, to provide a line of metal-to-metal contact therebetween, an elongated groove extending around one of said members, and formed of two spaced parallel flanges of un-"' 7 60 equal length, a compressible weatherstrip 1 5 mounted in said groove and hiring an edge extending therefrom, the longer' -flange of the groove-containing member being positioned for contact by said edge, and the shorter $5 flange of said groove permitting lateral ex- 

